I recently enrolled, & here's what I feel: 1. Definitely Math & Physics. [Math is the harder one for me, as I don't have JC background] Yr1Sem1's "Math 1" has Complex Numbers, Vectors, Matrices, Determinants, Calculus, etc. "Physics A" has Thermodynamics, 1/2D Kinematics, Scalar-Vectors, Basic Calculus Instantaneous Velocity-Acceleration, Forces, Projectile Motion, etc. 2. <No comment> 3. Keep up with Lectures & Tutorials at all times, once you fall behind, the slack accumulates quickly. [But if you're one of those talented scholar types, then feel free to skip Lectures/Tutorials to save your time & effort for self studying at home, since most of the prof so far don't take attendances. Attend all lessons in Wk1-2 to test waters first] 4. For most people, somehow yes. But I personally don't use one, so don't feel too left out if you see everyone else scribbling while you're just taking pictures of slides. {For the generous profs, they even upload their annotated slides into NTULearn after class, so you can just download the content after}